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Finding the Fourth Proportional to 188,486.07, 260,103.87 and 103,602.39

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Solution

The fourth proportional to 188,486.07, 260,103.87 and 103,602.39 is: 142,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,486.07 : 260,103.87 = 103,602.39 : x
  2. Step 2: Convert to fraction form
    188,486.07/260,103.87 = 103,602.39/x
  3. Step 3: Cross multiply
    188,486.07x = 260,103.87 × 103,602.39
  4. Step 4: Simplify right side
    188,486.07x = 26,947,382,580.25
  5. Step 5: Solve for x
    x = 26,947,382,580.25/188,486.07
  6. Step 6: Final answer
    x = 142,967.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.